CWM Bug: Simple Filter Broken

$ cat filter.n3
@prefix log: <http://www.w3.org/2000/10/swap/log#> .

{ ?s ?p ?o } => { [ ?p [] ] } .

$ echo ':Bob :knows :Steve . :John :knows :Fred .' | \
     cwm --filter=filter.n3 --ntriples
_:g13 <file:///tmp/#knows> _:g14 .

I think that should be generating two triples.

Using the CVS cwm I updated several seconds ago.

-- 
Sean B. Palmer, http://inamidst.com/sbp/